glasm: Fix output patch reads
With this, Luigi's Mansion's sand renders properly.
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		| @@ -21,6 +21,11 @@ std::string_view InterpDecorator(Interpolation interp) { | ||||
|     } | ||||
|     throw InvalidArgument("Invalid interpolation {}", interp); | ||||
| } | ||||
|  | ||||
| bool IsInputArray(Stage stage) { | ||||
|     return stage == Stage::Geometry || stage == Stage::TessellationControl || | ||||
|            stage == Stage::TessellationEval; | ||||
| } | ||||
| } // Anonymous namespace | ||||
|  | ||||
| EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile& profile_, | ||||
| @@ -76,7 +81,7 @@ EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile | ||||
|                 InterpDecorator(generic.interpolation), index, attr_stage, index, index); | ||||
|         } | ||||
|     } | ||||
|     if (stage == Stage::Geometry && info.loads_position) { | ||||
|     if (IsInputArray(stage) && info.loads_position) { | ||||
|         Add("ATTRIB vertex_position=vertex.position;"); | ||||
|     } | ||||
|     if (info.uses_invocation_id) { | ||||
| @@ -96,8 +101,9 @@ EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile | ||||
|             continue; | ||||
|         } | ||||
|         if (stage == Stage::TessellationControl) { | ||||
|             Add("OUTPUT result_patch_attrib{}[]={{result.patch.attrib[{}..{}]}};", index, index, | ||||
|                 index); | ||||
|             Add("OUTPUT result_patch_attrib{}[]={{result.patch.attrib[{}..{}]}};" | ||||
|                 "ATTRIB primitive_out_patch_attrib{}[]={{primitive.out.patch.attrib[{}..{}]}};", | ||||
|                 index, index, index, index, index, index); | ||||
|         } else { | ||||
|             Add("ATTRIB primitive_patch_attrib{}[]={{primitive.patch.attrib[{}..{}]}};", index, | ||||
|                 index, index); | ||||
|   | ||||
| @@ -20,15 +20,13 @@ void GetCbuf(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding, ScalarU | ||||
|     ctx.Add("LDC.{} {},c{}[{}];", size, ret, binding.U32(), offset); | ||||
| } | ||||
|  | ||||
| std::string VertexIndex(EmitContext& ctx, ScalarU32 vertex) { | ||||
|     switch (ctx.stage) { | ||||
|     case Stage::TessellationControl: | ||||
|     case Stage::TessellationEval: | ||||
|     case Stage::Geometry: | ||||
|         return fmt::format("[{}]", vertex); | ||||
|     default: | ||||
|         return ""; | ||||
| bool IsInputArray(Stage stage) { | ||||
|     return stage == Stage::Geometry || stage == Stage::TessellationControl || | ||||
|            stage == Stage::TessellationEval; | ||||
| } | ||||
|  | ||||
| std::string VertexIndex(EmitContext& ctx, ScalarU32 vertex) { | ||||
|     return IsInputArray(ctx.stage) ? fmt::format("[{}]", vertex) : ""; | ||||
| } | ||||
| } // Anonymous namespace | ||||
|  | ||||
| @@ -77,7 +75,7 @@ void EmitGetAttribute(EmitContext& ctx, IR::Inst& inst, IR::Attribute attr, Scal | ||||
|     case IR::Attribute::PositionY: | ||||
|     case IR::Attribute::PositionZ: | ||||
|     case IR::Attribute::PositionW: | ||||
|         if (ctx.stage == Stage::Geometry) { | ||||
|         if (IsInputArray(ctx.stage)) { | ||||
|             ctx.Add("MOV.F {}.x,vertex_position{}.{};", inst, VertexIndex(ctx, vertex), swizzle); | ||||
|         } else { | ||||
|             ctx.Add("MOV.F {}.x,{}.position.{};", inst, ctx.attrib_name, swizzle); | ||||
| @@ -164,7 +162,12 @@ void EmitGetPatch(EmitContext& ctx, IR::Inst& inst, IR::Patch patch) { | ||||
|     } | ||||
|     const u32 index{IR::GenericPatchIndex(patch)}; | ||||
|     const u32 element{IR::GenericPatchElement(patch)}; | ||||
|     ctx.Add("MOV.F {},result.patch.attrib[{}].{};", inst, index, "xyzw"[element]); | ||||
|     const char swizzle{"xyzw"[element]}; | ||||
|     if (ctx.stage == Stage::TessellationControl) { | ||||
|         ctx.Add("MOV.F {},primitive.out.patch.attrib[{}].{};", inst, index, swizzle); | ||||
|     } else { | ||||
|         ctx.Add("MOV.F {},primitive.patch.attrib[{}].{};", inst, index, swizzle); | ||||
|     } | ||||
| } | ||||
|  | ||||
| void EmitSetPatch(EmitContext& ctx, IR::Patch patch, ScalarF32 value) { | ||||
|   | ||||
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